Properties

Label 2-42-7.5-c4-0-5
Degree $2$
Conductor $42$
Sign $-0.992 + 0.124i$
Analytic cond. $4.34153$
Root an. cond. $2.08363$
Motivic weight $4$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (1.41 − 2.44i)2-s + (−4.5 + 2.59i)3-s + (−3.99 − 6.92i)4-s + (−20.7 − 11.9i)5-s + 14.6i·6-s + (−47.1 − 13.1i)7-s − 22.6·8-s + (13.5 − 23.3i)9-s + (−58.6 + 33.8i)10-s + (−48.9 − 84.8i)11-s + (35.9 + 20.7i)12-s + 104. i·13-s + (−98.9 + 96.9i)14-s + 124.·15-s + (−32.0 + 55.4i)16-s + (93.2 − 53.8i)17-s + ⋯
L(s)  = 1  + (0.353 − 0.612i)2-s + (−0.5 + 0.288i)3-s + (−0.249 − 0.433i)4-s + (−0.829 − 0.479i)5-s + 0.408i·6-s + (−0.963 − 0.268i)7-s − 0.353·8-s + (0.166 − 0.288i)9-s + (−0.586 + 0.338i)10-s + (−0.404 − 0.701i)11-s + (0.249 + 0.144i)12-s + 0.616i·13-s + (−0.505 + 0.494i)14-s + 0.553·15-s + (−0.125 + 0.216i)16-s + (0.322 − 0.186i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.992 + 0.124i)\, \overline{\Lambda}(5-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 42 ^{s/2} \, \Gamma_{\C}(s+2) \, L(s)\cr =\mathstrut & (-0.992 + 0.124i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(42\)    =    \(2 \cdot 3 \cdot 7\)
Sign: $-0.992 + 0.124i$
Analytic conductor: \(4.34153\)
Root analytic conductor: \(2.08363\)
Motivic weight: \(4\)
Rational: no
Arithmetic: yes
Character: $\chi_{42} (19, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 42,\ (\ :2),\ -0.992 + 0.124i)\)

Particular Values

\(L(\frac{5}{2})\) \(\approx\) \(0.0366977 - 0.587133i\)
\(L(\frac12)\) \(\approx\) \(0.0366977 - 0.587133i\)
\(L(3)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (-1.41 + 2.44i)T \)
3 \( 1 + (4.5 - 2.59i)T \)
7 \( 1 + (47.1 + 13.1i)T \)
good5 \( 1 + (20.7 + 11.9i)T + (312.5 + 541. i)T^{2} \)
11 \( 1 + (48.9 + 84.8i)T + (-7.32e3 + 1.26e4i)T^{2} \)
13 \( 1 - 104. iT - 2.85e4T^{2} \)
17 \( 1 + (-93.2 + 53.8i)T + (4.17e4 - 7.23e4i)T^{2} \)
19 \( 1 + (-33.2 - 19.1i)T + (6.51e4 + 1.12e5i)T^{2} \)
23 \( 1 + (-510. + 884. i)T + (-1.39e5 - 2.42e5i)T^{2} \)
29 \( 1 - 621.T + 7.07e5T^{2} \)
31 \( 1 + (1.31e3 - 759. i)T + (4.61e5 - 7.99e5i)T^{2} \)
37 \( 1 + (-281. + 486. i)T + (-9.37e5 - 1.62e6i)T^{2} \)
41 \( 1 - 1.02e3iT - 2.82e6T^{2} \)
43 \( 1 + 3.38e3T + 3.41e6T^{2} \)
47 \( 1 + (3.41e3 + 1.97e3i)T + (2.43e6 + 4.22e6i)T^{2} \)
53 \( 1 + (1.09e3 + 1.89e3i)T + (-3.94e6 + 6.83e6i)T^{2} \)
59 \( 1 + (-2.54e3 + 1.46e3i)T + (6.05e6 - 1.04e7i)T^{2} \)
61 \( 1 + (-576. - 332. i)T + (6.92e6 + 1.19e7i)T^{2} \)
67 \( 1 + (-2.96e3 - 5.13e3i)T + (-1.00e7 + 1.74e7i)T^{2} \)
71 \( 1 + 4.49e3T + 2.54e7T^{2} \)
73 \( 1 + (-7.76e3 + 4.48e3i)T + (1.41e7 - 2.45e7i)T^{2} \)
79 \( 1 + (-5.22e3 + 9.04e3i)T + (-1.94e7 - 3.37e7i)T^{2} \)
83 \( 1 + 1.26e3iT - 4.74e7T^{2} \)
89 \( 1 + (3.12e3 + 1.80e3i)T + (3.13e7 + 5.43e7i)T^{2} \)
97 \( 1 - 1.95e3iT - 8.85e7T^{2} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−14.67685531002169974126742736851, −13.20919818558962458433537048130, −12.28916386568937250424629118761, −11.21113520241450686464224636099, −10.05579358654567040896560908666, −8.616198391398499759997982866571, −6.62621496979631768334268126376, −4.88653222506638658314314640790, −3.43155639102114000304224415141, −0.35861722902111823352446220949, 3.39742501952175080326639774109, 5.36751440368906582812486783957, 6.84024858086050808473345619818, 7.81954727127925057209467155950, 9.701404869765280392685935704482, 11.27026949666567233932140266831, 12.47836595104777156382395614571, 13.33082551580988574949361930002, 15.05846113869720668370799804503, 15.61772213274061444139527336485

Graph of the $Z$-function along the critical line